No more users.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
gpio_request()
## gpio_request_one()
- ## gpio_request_array()
- ## gpio_free_array()
gpio_free()
*/
int gpio_request_one(unsigned gpio, unsigned long flags, const char *label);
- /* request multiple GPIOs in a single call
- */
- int gpio_request_array(struct gpio *array, size_t num);
-
- /* release multiple GPIOs in a single call
- */
- void gpio_free_array(struct gpio *array, size_t num);
-
where 'flags' is currently defined to specify the following properties:
* GPIOF_DIR_IN - to configure direction as input
if (err)
...
- err = gpio_request_array(leds_gpios, ARRAY_SIZE(leds_gpios));
- if (err)
- ...
-
- gpio_free_array(leds_gpios, ARRAY_SIZE(leds_gpios));
-
GPIOs mapped to IRQs
--------------------
gpio_request()
## gpio_request_one()
- ## gpio_request_array()
- ## gpio_free_array()
gpio_free()
*/
int gpio_request_one(unsigned gpio, unsigned long flags, const char *label);
- /* 在单个函数中申请多个 GPIO
- */
- int gpio_request_array(struct gpio *array, size_t num);
-
- /* 在单个函数中释放多个 GPIO
- */
- void gpio_free_array(struct gpio *array, size_t num);
-
这里 'flags' 当前定义可指定以下属性:
* GPIOF_DIR_IN - 配置方向为输入
if (err)
...
- err = gpio_request_array(leds_gpios, ARRAY_SIZE(leds_gpios));
- if (err)
- ...
-
- gpio_free_array(leds_gpios, ARRAY_SIZE(leds_gpios));
-
GPIO 映射到 IRQ
----------------
gpio_request()
## gpio_request_one()
-## gpio_request_array()
-## gpio_free_array()
gpio_free()
-
聲明和釋放 GPIO
----------------------------
爲了有助於捕獲系統配置錯誤,定義了兩個函數。
*/
int gpio_request_one(unsigned gpio, unsigned long flags, const char *label);
- /* 在單個函數中申請多個 GPIO
- */
- int gpio_request_array(struct gpio *array, size_t num);
-
- /* 在單個函數中釋放多個 GPIO
- */
- void gpio_free_array(struct gpio *array, size_t num);
-
這裡 'flags' 當前定義可指定以下屬性:
* GPIOF_DIR_IN - 配置方向爲輸入
if (err)
...
- err = gpio_request_array(leds_gpios, ARRAY_SIZE(leds_gpios));
- if (err)
- ...
-
- gpio_free_array(leds_gpios, ARRAY_SIZE(leds_gpios));
-
GPIO 映射到 IRQ
--------------------
return gpiod_request(desc, label);
}
EXPORT_SYMBOL_GPL(gpio_request);
-
-/**
- * gpio_request_array - request multiple GPIOs in a single call
- * @array: array of the 'struct gpio'
- * @num: how many GPIOs in the array
- *
- * **DEPRECATED** This function is deprecated and must not be used in new code.
- */
-int gpio_request_array(const struct gpio *array, size_t num)
-{
- int i, err;
-
- for (i = 0; i < num; i++, array++) {
- err = gpio_request_one(array->gpio, array->flags, array->label);
- if (err)
- goto err_free;
- }
- return 0;
-
-err_free:
- while (i--)
- gpio_free((--array)->gpio);
- return err;
-}
-EXPORT_SYMBOL_GPL(gpio_request_array);
-
-/**
- * gpio_free_array - release multiple GPIOs in a single call
- * @array: array of the 'struct gpio'
- * @num: how many GPIOs in the array
- *
- * **DEPRECATED** This function is deprecated and must not be used in new code.
- */
-void gpio_free_array(const struct gpio *array, size_t num)
-{
- while (num--)
- gpio_free((array++)->gpio);
-}
-EXPORT_SYMBOL_GPL(gpio_free_array);
}
int gpio_request_one(unsigned gpio, unsigned long flags, const char *label);
-int gpio_request_array(const struct gpio *array, size_t num);
-void gpio_free_array(const struct gpio *array, size_t num);
/* CONFIG_GPIOLIB: bindings for managed devices that want to request gpios */
return -ENOSYS;
}
-static inline int gpio_request_array(const struct gpio *array, size_t num)
-{
- return -ENOSYS;
-}
-
static inline void gpio_free(unsigned gpio)
{
might_sleep();
WARN_ON(1);
}
-static inline void gpio_free_array(const struct gpio *array, size_t num)
-{
- might_sleep();
-
- /* GPIO can never have been requested */
- WARN_ON(1);
-}
-
static inline int gpio_direction_input(unsigned gpio)
{
return -ENOSYS;